Please I need help. PHYSICS
A car of mass 1.2 x 1012kg is traveling along a straight horizontal road at a speed of 20 m/s when it brakes sharply then skids.
Friction brings the car to rest.
If the coefficient of friction between the tires and road is 0.8, calculate:
a) the deceleration
b) the distance travelled by the car before it comes to rest